Jeep Cherokee 1999 Electronic Service Manual page 1104

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REM OVAL AN D I N STALLAT I ON (Cont inue d)
in .) in dia m et er. DO NOT a pply sea ler t o t h e lip of
t h e sea l.
(10) In st a ll t h e r ea r m a in bea r in g ca p. DO NOT
st r ike t h e ca p m or e t h a n t wice for pr oper en ga ge-
m en t .
(11) Tigh t en a ll m a in bea r in g bolt s t o 108 N·m (80
ft . lbs.) t or qu e.
(12) In st a ll t h e m a in bea r in g ca p br a ce. Tigh t en
n u t s t o 47 N·m (35 ft . lbs.).
(13) In st a ll t h e oil pa n ga sket a n d oil pa n . Tigh t en
1/4 – 20 scr ews t o 14 N·m (120 in . lbs.). Tigh t en 5/16
– 18 scr ews t o 18 N·m (156 in . lbs.).
(14) In st a ll t r a n sm ission in spect ion cover.
OIL PUMP
A gea r-t ype oil pu m p is m ou n t ed a t t h e u n der side
of t h e cylin der block opposit e t h e No.4 m a in bea r in g.
Th e pu m p in cor por a t es a n on a dju st a ble pr essu r e
r elief va lve t o lim it m a xim u m pr essu r e t o 517 kP a
(75 psi). In t h e r elief posit ion , t h e va lve per m it s oil t o
Fig. 58 Location of Sealer
bypa ss t h r ou gh a pa ssa ge in t h e pu m p body t o t h e
in let side of t h e pu m p.
Oil pu m p r em ova l or r epla cem en t will n ot a ffect
t h e dist r ibu t or t im in g beca u se t h e dist r ibu t or dr ive
gea r r em a in s in m esh wit h t h e ca m sh a ft gea r.
REMOVAL
(1) Dr a in t h e en gin e oil.
(2) Rem ove t h e oil pa n .
(3) Rem ove t h e pu m p-t o-cylin der block a t t a ch in g
bolt s. Rem ove t h e pu m p a ssem bly wit h ga sket (F ig.
59).
CAUTION: If the oil pump is not to be serviced, DO
NOT disturb position of oil inlet tube and strainer
assembly in pump body. If the tube is moved within
the pump body, a replacement tube and strainer
assembly must be installed to assure an airtight
seal.
4.0L ENGINE 9 - 87